A man and woman run through a field holding hands. They bound toward the sunset, happy as can be. Suddenly, the man moves off of his straight line course and starts veering to his left. At the same time, the woman begins running off to her right.
They continue this for a full minute, but never let go of each others hands.
How is this possible?
The man was facing the west (towards the sunset) and running forward, but the woman was facing the east and running backwards.
The man’s right hand was holding the woman’s right hand. As the man veered to his left, the woman veered to her right as she was running backwards.